SMD antenna and notebook computer

Abstract

The present invention provides a patch antenna and a notebook computer, comprising a dielectric substrate, one side of the dielectric substrate is bonded with a grounding plate; and a feeding branch and a radiation branch are arranged on the dielectric substrate; wherein the feeding branch is configured as The U-shaped metal patch with the mouth facing the ground plate, the feed branch includes a feed ground section, a feed section, and a feed connection section connecting the two, and the bottom of the feed ground section is connected to the ground plate for Grounding, a gap is formed between the bottom of the feed section and the ground plate; the inner conductor of the coaxial feeder is welded to the bottom of the feed section for feeding, and the outer conductor of the coaxial feeder is connected to the ground The ground is used to form the current loop of the loop antenna; the patch antenna of the present invention enhances the anti-interference ability of the antenna to environmental changes, reduces the size of the antenna, and is convenient for adjusting the impedance matching of the antenna.

Description

technical field [0001] The invention relates to the field of wireless communication antennas, in particular to a miniaturized coupling patch broadband antenna. Background technique [0002] The antenna is a conversion device between the space radio wave signal and the AC current signal in the circuit. The space radio wave signal is transmitted to the circuit through the antenna; the AC current signal in the circuit is finally transmitted to the space through the antenna. [0003] In recent years, with the development of wireless communication technology and the continuous introduction of various new intelligent terminal products, the design of antennas has also focused more on the miniaturization of the antenna and signal stability. As for the antenna, reducing the size of the antenna usually leads to a decrease in the efficiency of the antenna and a decrease in the radiation bandwidth of the antenna. Therefore, new antennas with both miniaturization and signal stability ha...

AI Technical Summary

Problems solved by technology

[0004] At present, the common miniaturized coupling antennas, such as monopole antennas, have low feed efficiency, and there is a problem that the antenna performance is easily affected by the environment. When encountering some relatively complex wireless communication terminal application environments or space constraints In a large application environment, the radiation capability of the antenna will be greatly limited, and the impedance adjustment and matching of this antenna are difficult, and the size is also large

At the same time, in some antenna design improvement methods, such as adding parasitic structures, adding slotted structures, adding tuning structures, etc., although the radiation capability and environmental adaptability of the antenna are increased, the above structures make the antenna size larger, so in some Difficult to apply on ultra-thin and small intelligent terminals

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